StomachYou can only have so much food and drink in your stomach at once, limiting the amount players can consume to prevent abuse of regeneration mechanics by simply gorging on food. You can read detailed information about the Stomach mechanic here [LINK].

BloodHow much blood you have in your body. In the Arma II mod, Blood was your health; this is no longer the case in Standalone.

HealthYour current health. When this hits 0, you're dead.

Exposure

Body temperature of your character. Affects infection resistance.

Shock

When you are injured, you receive a level of Shock damage. Too much Shock at once, and you will fall Unconcious.